71 lines
2.1 KiB
ReStructuredText
71 lines
2.1 KiB
ReStructuredText
Introduction
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============
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Welcome to the documentation for Twig, the flexible, fast, and secure template
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engine for PHP.
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Twig is both designer and developer friendly by sticking to PHP's principles and
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adding functionality useful for templating environments.
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The key-features are...
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* *Fast*: Twig compiles templates down to plain optimized PHP code. The
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overhead compared to regular PHP code was reduced to the very minimum.
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* *Secure*: Twig has a sandbox mode to evaluate untrusted template code. This
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allows Twig to be used as a template language for applications where users
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may modify the template design.
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* *Flexible*: Twig is powered by a flexible lexer and parser. This allows the
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developer to define their own custom tags and filters, and to create their own DSL.
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Twig is used by many Open-Source projects like Symfony, Drupal8, eZPublish,
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phpBB, Matomo, OroCRM; and many frameworks have support for it as well like
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Slim, Yii, Laravel, and Codeigniter — just to name a few.
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Prerequisites
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-------------
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Twig needs at least **PHP 7.0.0** to run.
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Installation
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------------
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The recommended way to install Twig is via Composer:
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.. code-block:: bash
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composer require "twig/twig:^2.0"
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Basic API Usage
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---------------
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This section gives you a brief introduction to the PHP API for Twig.
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.. code-block:: php
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require_once '/path/to/vendor/autoload.php';
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$loader = new \Twig\Loader\ArrayLoader([
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'index' => 'Hello {{ name }}!',
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]);
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$twig = new \Twig\Environment($loader);
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echo $twig->render('index', ['name' => 'Fabien']);
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Twig uses a loader (``\Twig\Loader\ArrayLoader``) to locate templates, and an
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environment (``\Twig\Environment``) to store its configuration.
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The ``render()`` method loads the template passed as a first argument and
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renders it with the variables passed as a second argument.
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As templates are generally stored on the filesystem, Twig also comes with a
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filesystem loader::
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$loader = new \Twig\Loader\FilesystemLoader('/path/to/templates');
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$twig = new \Twig\Environment($loader, [
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'cache' => '/path/to/compilation_cache',
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]);
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echo $twig->render('index.html', ['name' => 'Fabien']);
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